package com.dzh.config;

import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginHandlerInterceptor  implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //登陆成功之后，获取用户的session
        Object loginUser = request.getSession().getAttribute("loginUser");
        if (loginUser==null){//未登录
            System.out.println(request.getRequestURI());
            request.setAttribute("msg","权限不足");
            request.getRequestDispatcher("index.html").forward(request,response);
//            response.sendRedirect("index.html");
            return false;
        }else {
            return true;
        }

    }

}
